SuperRoo
NAXJA Forum User
- Location
- London, UK (formerly OZ)
I hate it when reading a series of posts you come across no conclusion. So, not to put myself in that boat, i thought i'd post up my findings to those that so kindly helped me along a few months back.
I really wanted to discover the origins of my renix or 'frankenjeep' :looney: as Ecomike so kindly put it
Whereas my block is 53010841 putting it at the 1999 mark - as detailed below -
Block Casting Numbers (borrowed from CJ7-Tim, from Jeepforum)
Year............Casting No
1987-90......53005535 (8933002665)
1991-95......53008405
1996-98......53020569
1999-04......53010449
So my educated guess is it's a '99 engine with Renix manifolds & electronics.iratefla
_______________________________________________________
1988 Cherokee Laredo 4.0L 4WD Auto - formally from California
I really wanted to discover the origins of my renix or 'frankenjeep' :looney: as Ecomike so kindly put it
Well my head number is 0630, so puts it between 1996-99 according to the aboveNote from DJ
This information may help you identify what the previous owner swapped into your Jeep
Block casting no location can be found hear in post # 2 by CJ7-Tim
http://www.jeepforum.com/forum/f11/4-0l-serial-number-location-995174/
Head casting number by years
It is easy to determine what head you have. On the driver’s side, about halfway down the cylinder head between #3 & #4 fuel injector but below the valve cover clean the lip of the head with a rag or solvent if really greasy. With a good light, you can read the casting number of the head.
Head casting number by years
Casting numbers are as follows:
Year............Casting No
1987-90......2686
1991-95......7120
1996-99......0630
2000-01......0331
Whereas my block is 53010841 putting it at the 1999 mark - as detailed below -
Block Casting Numbers (borrowed from CJ7-Tim, from Jeepforum)
Year............Casting No
1987-90......53005535 (8933002665)
1991-95......53008405
1996-98......53020569
1999-04......53010449
So my educated guess is it's a '99 engine with Renix manifolds & electronics.iratefla
_______________________________________________________
1988 Cherokee Laredo 4.0L 4WD Auto - formally from California
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